Effects of concurrent oral administration of toxic levels of monensin and lead on concentration of different elements in the liver of broiler chicks.

Monensin and lead, separately or concurrently, were orally administered to broiler chicks at different toxic levels. Monensin slightly increased the selenium and profoundly increased the lead and iron levels of liver. Lead also increased the level of iron in liver. Levels of lead and iron in liver tissue further increased when monensin and lead were administered concurrently. An increased mortality was recorded due to concurrent administration of monensin and lead during acute toxicosis but during subacute toxicosis body weights were higher in birds administered monensin and lead concurrently than those given these substances separately.